/Engine/Plugins/Importers/USDImporter/Source/USDExporter/Public/MaterialExporterUSDOptions.h
Options for exporting materials to USD format. We use a dedicated object instead of reusing the MaterialBaking module as automated export tasks can only have one options object, and we need to also provide the textures directory.
[UCLASS](Programming/UnrealArchitecture/Reference/Classes#classdeclaration)(Config=Editor, Blueprintable) class UMaterialExporterUSDOptions : public [UObject](API\Runtime\CoreUObject\UObject\UObject)
bool
bReExportIdenticalAssets
Whether to export any asset (StaticMesh, Material, etc.) even if the existing file already describes the same version of a compatible asset.
FUsdMaterialBak...
MaterialBakingOptions